Does anybony know what the resistance should be between both the coolant temp sensor and o2 sensor? I can't find it anywhere on here!
The following are specs for the ls1 motor. May be similar for v6 but maybe not.
The temp sensor:
Low temp = high resistance 29k ohms @ -20 degrees
High temp = low resistance 180 ohms @ 100 degrees
The oxygen sensors are not thermistors like the temp sensor therefore they are not polled on their resistance value by the pcm. When @ operating temp they act as voltage generators, producing a rapidly changing voltage between 10 - 1000 millivolts depending on the level of oxygen detected. It is the voltage that is polled by the pcm.